import UIKit
import PlaygroundSupport

/**
var greeting = "Hello, playground"

print(greeting)

class Person {
    var name: String
    var age: Int
    init(name: String, age: Int) {
        self.name = name
        self.age = age
    }
}


extension Person : CustomStringConvertible {
    var description: String {
        get {
            return "name是: \(name), age是: \(age)"
        }
    }
}

let zhangSan = Person(name: "zhangSan", age: 18)

 */


let vc = ViewController1()
let navVc = UINavigationController(rootViewController: vc)
PlaygroundPage.current.liveView = navVc
